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0a4081641d
linux/arch/powerpc
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Varun Sethi 0a4081641d powerpc/mpic: FSL MPIC error interrupt support. 
All SOC device error interrupts are muxed and delivered to the core
as a single MPIC error interrupt. Currently all the device drivers
requiring access to device errors have to register for the MPIC error
interrupt as a shared interrupt.

With this patch we add interrupt demuxing capability in the mpic driver,
allowing device drivers to register for their individual error interrupts.
This is achieved by handling error interrupts in a cascaded fashion.

MPIC error interrupt is handled by the "error_int_handler", which
subsequently demuxes it using the EISR and delivers it to the respective
drivers.

The error interrupt capability is dependent on the MPIC EIMR register,
which was introduced in FSL MPIC version 4.1 (P4080 rev2). So, error
interrupt demuxing capability is dependent on the MPIC version and can
be used for versions >= 4.1.

Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com>
Signed-off-by: Bogdan Hamciuc <bogdan.hamciuc@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2012-09-12 14:57:10 -05:00
..
boot powerpc/85xx: introduce support for the Freescale / iVeia P1022RDK 2012-09-12 14:57:07 -05:00
configs powerpc/85xx: introduce support for the Freescale / iVeia P1022RDK 2012-09-12 14:57:07 -05:00
include/asm powerpc/mpic: FSL MPIC error interrupt support. 2012-09-12 14:57:10 -05:00
kernel powerpc/swiotlb: Enable at early stage and disable if not necessary 2012-09-12 14:57:09 -05:00
kvm Merge branch 'merge' into next 2012-09-07 09:48:59 +10:00
lib powerpc: Don't use __put_user() in patch_instruction 2012-09-05 16:05:23 +10:00
math-emu powerpc/math_emu/efp: Look for errata handler when type mismatches 2011-10-06 23:36:47 -05:00
mm powerpc/swiotlb: Enable at early stage and disable if not necessary 2012-09-12 14:57:09 -05:00
net powerpc: Start using ___PPC_RA/B/S/T where necessary 2012-07-10 19:18:25 +10:00
oprofile powerpc/oprofile: Fix marked events support on Power7+ not set. 2012-09-07 11:10:54 +10:00
perf Merge branch 'merge' into next 2012-09-07 09:48:59 +10:00
platforms powerpc/swiotlb: Enable at early stage and disable if not necessary 2012-09-12 14:57:09 -05:00
sysdev powerpc/mpic: FSL MPIC error interrupt support. 2012-09-12 14:57:10 -05:00
xmon powerpc: Rework set_dabr so it can take a DABRX value as well 2012-09-10 09:59:10 +10:00
Kconfig powerpc/85xx: add HOTPLUG_CPU support 2012-09-12 14:57:08 -05:00
Kconfig.debug powerpc: IOMMU fault injection 2012-07-10 19:18:59 +10:00
Makefile crypto: nx - move nx build to driver/crypto Makefile 2012-06-27 14:42:00 +08:00
relocs_check.pl powerpc: Process dynamic relocations for kernel 2011-12-20 10:21:08 -05:00